(A) : A helicopter must necessarily have two propellers. (R ): Two propellers are provided in helicopter in order to conserve linear momentum

(A) : A helicopter must necessarily have two propellers. (R ): Two pr

1.	(A) : A helicopter must necessarily have two propellers. (R ): Two propellers are provided in helicopter in order to conserve linear momentum
Answer» Both 'A' and 'R' and TRUE and 'R' is the correct explantation of 'A' Both 'A' and 'R' and true and 'R' is notthe correct explantation of 'A' A' is true and 'R' is false A' is false and 'R' is true Answer :C